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Measurement and Instrumentation

Measurement and Instrumentation
A resistor of 10kΩhms with 5% tolerance is connected in parallel with a 5kΩhms resistor of 10% tolerance. What is the tolerance limit for the parallel network?

8.33%
5%
6.67%
10%

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Measurement and Instrumentation
Dynamic errors are caused by

 instrument not responding fast
 human error
 environmental error
 observational error

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Measurement and Instrumentation
The pressure coil of a wattmeter should be connected on the supply side of the current coil when

Load impedance is high
Load impedance is low
None of these
Supply voltage is low

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Measurement and Instrumentation
To measure high frequency currents, we mostly use ______ ammeter.

Thermocouple
Dynamometer
Hot wire
Moving iron

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Measurement and Instrumentation
Induction wattmeter can measure

None of the listed here
Both AC and DC
Ac power only
Dc power only

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Measurement and Instrumentation
A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be

 25 W.
 100 W.
 50 W.
  0 W.

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